Scalloped leading edge advancements
First Claim
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1. An apparatus defining a longitudinal upstream direction, comprising:
- a laterally extending streamlined body having a laterally extending leading edge facing in the upstream direction, wherein the laterally extending body defines a plurality of protrusions spaced laterally along the leading edge, the protrusions creating a smoothly varying alternately forward and aft sweep to the leading edge relative to the upstream flow direction along the leading edge; and
an instrument located at least in part within the protrusion.
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Abstract
An apparatus to modify a wing to provide increased lift over drag ratios and reduced noise compared to similar wings with straight leading edges. For wings extending in a lateral direction, and defining a longitudinal upstream direction, the apparatus forms a laterally extending leading edge facing in the upstream direction. The apparatus forms a plurality of protrusions spaced laterally along the leading edge, the protrusions creating a smoothly varying, alternately forward-and-aft sweep along the leading edge relative to the upstream flow direction along the leading edge. The protrusions may contain instruments, and may be deployable and retractable.
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Citations
7 Claims
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1. An apparatus defining a longitudinal upstream direction, comprising:
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a laterally extending streamlined body having a laterally extending leading edge facing in the upstream direction, wherein the laterally extending body defines a plurality of protrusions spaced laterally along the leading edge, the protrusions creating a smoothly varying alternately forward and aft sweep to the leading edge relative to the upstream flow direction along the leading edge; and
an instrument located at least in part within the protrusion. - View Dependent Claims (2)
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3. An apparatus defining a longitudinal upstream direction, comprising:
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a laterally extending streamlined body having a laterally extending leading edge facing in the upstream direction, wherein the laterally extending body defines a plurality of protrusions spaced laterally along the leading edge, the protrusions creating a smoothly varying alternately forward and aft sweep to the leading edge relative to the upstream flow direction along the leading edge;
wherein the protrusions are configured to be at least one of deployable and retractable. - View Dependent Claims (4, 5)
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6. A method of reducing the generation of noise by a wing, wherein the wing is laterally extending and defines a leading edge facing in a longitudinal upstream direction of a flowing fluid, comprising:
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providing the leading edge of the wing with a plurality of protrusions spaced laterally along the wing'"'"'s leading edge, the protrusions creating a smoothly varying alternately forward and aft sweep to the leading edge relative to the upstream flow direction along the leading edge;
wherein the step of providing comprises deploying protrusions that are configured to be deployed while in a flowing fluid. - View Dependent Claims (7)
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Specification